“whitlockite”的英文意思_释义_用法

单词

whitlockite

释义

whitlockite Min.|ˈhwɪtləkaɪt|
[f. the name of Herbert P. Whitlock (1868–1948), U.S. mineralogist + -ite¹.]
A calcium hydrogen phosphate containing ferrous iron and magnesium, Ca₉(Mg,Fe)H(PO₄)₇, found as transparent or translucent rhombohedral crystals of various colours and often occurring in dental calculi.
1940C. Frondel in Program & Abstr. 21st Ann. Meeting Mineral. Soc. Amer. 7 Whitlockite is anhydrous calcium triphosphate..with Ca substituted for by Mg..and Fe... The mineral is named after Herbert P. Whitlock,..at present Curator of Minerals and Gems in the American Museum of Natural History.1971Nature 3 Dec. 264/1 The rock contains relatively small amounts of the phases that we have found in other Apollo basalts (..whitlockite, baddeleyite).1979Williams & Elliott Dental Biochem. xii. 226 Whitlockite is more common in subgingival compared with supragingival calculus.

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